prop-types in some component

components: not sure
reactstrap version 6
import method umd/csj/es (if umd, are you using the "full" version (only for v5+)?)
react version 16.3.2
bootstrap version ![screenshot from 2018-05-01 19-55-22](https://user-images.githubusercontent.com/2643684/39500455-29298f58-4d7a-11e8-9160-65bea0b28a4a.png) 4

paste error message with stacktrack here

Thanks for reporting; fixed in 6.0.1

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